content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * ---------------------------------------
   * StandardCategoryItemLabelGenerator.java
   * ---------------------------------------
   * (C) Copyright 2004-2012, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 11-May-2004 : Version 1 (DG);
   * 20-Apr-2005 : Renamed StandardCategoryLabelGenerator
   *               --> StandardCategoryItemLabelGenerator (DG);
   * ------------- JFREECHART 1.0.0 ---------------------------------------------
   * 03-May-2005 : Added equals() implementation, to fix bug 1481087 (DG);
   * 17-Jun-2012 : Removed JCommon dependencies (DG);
   *
   */
  
  package org.jfree.chart.labels;
  
  import java.io.Serializable;
  import java.text.DateFormat;
  import java.text.NumberFormat;
  
  import org.jfree.chart.util.PublicCloneable;
  import org.jfree.data.category.CategoryDataset;
  
  /**
   * A standard label generator that can be used with a
   * {@link org.jfree.chart.renderer.category.CategoryItemRenderer}.
   */
  public class StandardCategoryItemLabelGenerator
      extends AbstractCategoryItemLabelGenerator
      implements CategoryItemLabelGenerator, Cloneable, PublicCloneable,
                 Serializable {
  
      /** For serialization. */
      private static final long serialVersionUID = 3499701401211412882L;
  
      /** The default format string. */
      public static final String DEFAULT_LABEL_FORMAT_STRING = "{2}";
  
      /**
       * Creates a new generator with a default number formatter.
       */
      public StandardCategoryItemLabelGenerator() {
          super(DEFAULT_LABEL_FORMAT_STRING, NumberFormat.getInstance());
      }
  
      /**
       * Creates a new generator with the specified number formatter.
       *
       * @param labelFormat  the label format string (<code>null</code> not
       *                     permitted).
       * @param formatter  the number formatter (<code>null</code> not permitted).
       */
      public StandardCategoryItemLabelGenerator(String labelFormat,
                                                NumberFormat formatter) {
          super(labelFormat, formatter);
      }
  
      /**
       * Creates a new generator with the specified number formatter.
       *
       * @param labelFormat  the label format string (<code>null</code> not
       *                     permitted).
       * @param formatter  the number formatter (<code>null</code> not permitted).
       * @param percentFormatter  the percent formatter (<code>null</code> not
       *     permitted).
       *
       * @since 1.0.2
       */
      public StandardCategoryItemLabelGenerator(String labelFormat,
              NumberFormat formatter, NumberFormat percentFormatter) {
          super(labelFormat, formatter, percentFormatter);
      }
  
      /**
       * Creates a new generator with the specified date formatter.
       *
       * @param labelFormat  the label format string (<code>null</code> not
       *                     permitted).
       * @param formatter  the date formatter (<code>null</code> not permitted).
       */
      public StandardCategoryItemLabelGenerator(String labelFormat,
                                                DateFormat formatter) {
          super(labelFormat, formatter);
      }
  
      /**
       * Generates the label for an item in a dataset.  Note: in the current
       * dataset implementation, each row is a series, and each column contains
       * values for a particular category.
       *
       * @param dataset  the dataset (<code>null</code> not permitted).
       * @param row  the row index (zero-based).
       * @param column  the column index (zero-based).
       *
       * @return The label (possibly <code>null</code>).
       */
      @Override
      public String generateLabel(CategoryDataset dataset, int row, int column) {
          return generateLabelString(dataset, row, column);
      }
  
      /**
       * Tests this generator for equality with an arbitrary object.
       *
       * @param obj  the object (<code>null</code> permitted).
       *
       * @return <code>true</code> if this generator is equal to
       *     <code>obj</code>, and <code>false</code> otherwise.
       */
      @Override
      public boolean equals(Object obj) {
          if (obj == this) {
              return true;
          }
          if (!(obj instanceof StandardCategoryItemLabelGenerator)) {
              return false;
          }
          return super.equals(obj);
      }
  }
  